16results about How to "Improve insecticidal efficiency" patented technology

The invention discloses application of an epidermal protein gene SlituCP26 in prevention and treatment of prodenia litura, and relates to the technical field of biology. The nucleotide sequence of the SlituCP26 gene is shown as SEQ ID NO: 1, the SlituCP26 gene is highly expressed in an indoxacarb resistant strain, dsRNA of the gene is prepared, the dsRNA is micro-injected into prodenia litura larvae, after injection, the expression level of the SlituCP26 gene is obviously reduced, the body type of the larvae is obviously reduced, the epidermis thickness is obviously reduced, and the sensitivity to indoxacarb is obviously improved. The invention also provides a SlituCP26 gene promoter, and the drug resistance of the prodenia litura can be detected through the difference in sequence after the promoter is amplified. According to the invention, the fact that the epidermal protein SlituCP26 gene participates in the effect of the prodenia litura on resisting insecticides and the formation process of a resistance mechanism is clear, and the epidermal protein SlituCP26 gene has theoretical significance on the development of new insecticides.

The utility model relates to the technical field of agricultural machinery, in particular to a pesticide stirring device for wheat insect pest prevention planting, which comprises a stirring barrel, and the side wall of the stirring barrel is communicated and hermetically connected with a stirring motor; used pesticide liquid is filtered out through the filtering structure for filtering the wheat seeds, the pesticide liquid is pumped out through the water pumping system and then input back into the stirring barrel through the communicating pipelines to be recycled, pesticide liquid resources can be saved, and the pesticide liquid can kill insects on the wheat seeds at a high proportion. Therefore, compared with a traditional pesticide stirring structure, the pesticide stirring device has the advantages that the pesticide killing efficiency is improved, pesticide liquid resources are saved, and time is saved.

This invention relates to the fields of pesticide formulations and pesticide pest control, specifically to a composite nano-slow-release suspension of emamectin benzoate and chlorantraniliprole, its preparation, and application. The nano-slow-release suspension comprises emamectin benzoate, chlorantraniliprole, a nanocarrier, a wetting agent, a dispersant, a synergist, a thickener, an antifoaming agent, an antifreeze, a preservative, and water. The nanocarrier is an NX-CMCS & MOF composite nanocarrier. Spraying this composite nano-pesticide onto crops improves the adhesion and penetration of the pesticide on leaves, enhances its resistance to rain washout, and effectively kills major crop pests such as bollworms, diamondback moths, cowpea thrips, and rice planthoppers. Compared with traditional pesticide formulations, it has a significant effect of reducing dosage and increasing efficacy, and has broad application prospects in the field of agricultural pest control and promoting green agriculture.

The invention relates to a pear tree disease and pest control method and a pest expelling device.The pear tree disease and pest control method comprises the following steps that in the early spring period, a pest trapping lamp moves along the edge of an orchard, and pests entering the orchard are trapped and killed; pesticide is regularly sprayed to the pear trees in the orchard, and ultrasonic waves are emitted to the area where the pesticide is being sprayed in the orchard; in summer and autumn, the trap lamp moves along the edge of the orchard to trap and kill the pests transferred out of the orchard; pesticide is regularly sprayed to the pear trees in the orchard, and ultrasonic waves are emitted to the area where the pesticide is being sprayed in the orchard; in the pre-winter period, the trap lamp moves along the edge of the orchard to trap and kill pests entering from the outside of the orchard; pesticide is regularly sprayed to pear trees in the orchard, and ultrasonic waves are emitted to the area where the pesticide is being sprayed in the orchard and the edge of the orchard. Compared with the prior art, the insect killing efficiency can be improved, and the pesticide spraying frequency is reduced.

The utility model provides a deinsectization device with double mechanisms of electric shock and viscous trap, which comprises a deinsectization component, the deinsectization component comprises a sticky plate, an upper shell, a lower shell, a protective net, a limiting pressure plate, an electrode net, a UV (ultraviolet) light source, four mounting screws, four insulating support seats, a mounting seat and a buckle; and the upper shell is clamped with the lower shell through the buckles. The circuit board supplies power to the UV light source and the electrode net, ultraviolet light is generated when the UV light source works, one part of insects directly make contact with the sticky plate, the other part of insects enter the shell through the protective net and make contact with the electrode net, and the insects escaping during electric shock make contact with the sticky plate arranged opposite to the electrode net, so that the insects are prevented from escaping. The insect killing device has the advantages that the insect killing efficiency is improved by combining electric shock with viscous catching, the effective insect killing area is increased by the aid of the sticky plate, and the sticky plate is detachable and convenient to replace so as to maintain the insect killing effect.

The utility model relates to the technical field of pest control, in particular to pest control equipment for trichosanthes kirilowii Maxim planting, which comprises a frame body, a rectangular hole is formed in the side surface of the frame body, a mounting groove is formed in the inner wall of the rectangular hole, and a plurality of luring lamps are fixedly mounted at the upper end of the inner wall of the rectangular hole. A mounting groove is formed in the surface of the frame body, a rotating rod is horizontally and rotatably mounted in the mounting groove, one end of the rotating rod penetrates out of the mounting groove, a driving motor is fixedly mounted on the surface of the frame body, an output shaft of the driving motor is fixedly connected with one end of the rotating rod, the rotating rod is fixedly sleeved with a mounting block, and a plurality of power grid plates are fixedly mounted on the mounting block. Through mutual cooperation of the driving motor, the rotating rod and the mounting block, continuous overturning of the upper face and the lower face of the power grid plate is achieved, so that dead bodies on the power grid plate can automatically fall into the mounting groove, the situation that the dead bodies of pests accumulated on the power grid plate affect contact of the pests behind the power grid plate and the power grid plate is effectively prevented, and the pest control effect of the device is improved.

This invention discloses a protein-based nanomaterial, its preparation method, and its application as a nucleic acid delivery carrier. The preparation method includes: modifying BSA with 1,6-hexanediamine as a modifier; dissolving the obtained BSA-NH2 and 2-iminothionyl pentane hydrochloride in PBS buffer to obtain a mixed solution; dissolving dodecyl acrylate and triethylamine in dimethyl sulfoxide and adding them to the mixed solution for stirring at room temperature; and dialysis purification. This invention grafts low-density dodecyl acrylate hydrophobic carbon chains onto the surface of cationic BSA to construct a bifunctional carrier with both charge-mediated encapsulation and transmembrane delivery capabilities. The hydrophobic chains mimic the hydrophobic environment of biological membranes, reducing the energy barrier and enhancing affinity to achieve efficient internalization, promoting the interaction between the carrier and the cell membrane; while amino modification endows it with pH-responsive dissociation ability, thereby enabling endosome escape.

The invention discloses application of thuringirin in prevention and treatment of cotton aphid, green peach aphid, armyworm and soybean cyst nematode, and belongs to the field of microbial pesticides. The invention discovers that the thurinin has the biological activity of killing cotton aphid, green peach aphid, mythimna separata and soybean cyst nematode for the first time, has a wide application prospect, and can be developed into a novel environment-friendly biological control agent.

The utility model relates to the field of plant protection appliances, in particular to a plant protection insect trapping device which comprises a supporting rod, a side rod is arranged on one side of the supporting rod, an electric control assembly is arranged below the side rod and used for storing and releasing electric energy, the end of the side rod is detachably connected with an insect trapping assembly and used for attracting and killing insects, and the electric control assembly is electrically connected with the insect trapping assembly. The insect trapping assembly is provided with an insect repelling lamp, the upper end of the insect repelling lamp is sleeved with a protective cover, the top of the insect repelling lamp is in threaded connection with the end of the side rod, and the tail of the insect repelling lamp is in threaded connection with the collecting box. According to the insect-repelling lamp, the attraction to the insects is further expanded, the insect-repelling efficiency is improved, meanwhile, the attraction capacity of the insect-repelling lamp to the insects in the daytime is improved, and the killing capacity of the insect-repelling lamp to the insects when the insect pheromone is used is enhanced through the power grid.

The present application provides a protein and its use in improving the virulence of a parasporal crystal protein of Bacillus thuringiensis, which comprises a protein having an amino acid sequence shown in SEQ ID NO: 1. The protein of the present application can effectively improve the virulence of the parasporal crystal protein, especially the insecticidal capacity, after cooperating with the parasporal crystal protein, thereby reducing the use amount of the parasporal crystal protein, lowering the insecticidal cost, improving the insecticidal efficiency, and being suitable for large-scale popularization and application.

The invention belongs to the technical field of agricultural biology, and particularly relates to a nucleic acid pesticide for preventing and controlling tetranychus urticae and application of the nucleic acid pesticide. Research finds that after the expression quantity of the Pb1 gene of the tetranychus urticae is reduced by an RNA interference technology, the growth and development abnormity and the death rate of the tetranychus urticae are obviously improved, the medial lethal concentration of the tetranychus urticae is 4.86 ng / mu L, and the prevention and control effects on eggs, larvae and adults are 92.76%, 84.24% and 96.14% respectively when the double-stranded RNA of Pb1 is sprayed on the surfaces of plants, so that the application of the Pb1 gene of the tetranychus urticae is promoted, and the application of the Pb1 gene of the tetranychus urticae is promoted. Therefore, the target gene has great potential in the prevention and control of the tetranychus urticae, and meanwhile, a new way is provided for the prevention and control of the tetranychus urticae by utilizing the double-stranded RNA.

The application belongs to but is not limited to the technical field of Blattella germanica prevention and treatment, and discloses a Blattella germanica prevention and treatment method and system based on nanoparticle delivery of lethal gene dsRNA, which comprises the following steps: Blattella germanica lethal gene full-length cloning; plasmid construction and dsRNA expression and purification; and RNAi feeding. The application first confirms an efficient RNAi lethal target point for Blattella germanica, ensures the efficiency of the technical scheme, realizes low-cost and large-scale preparation of an active ingredient of an RNAi insecticide, breaks through the cost bottleneck of commercial application, creatively constructs a nanocomposite delivery system, efficiently overcomes the technical bottleneck of oral delivery of RNAi, and provides an environment-friendly practical prevention and treatment scheme, and has important application value and prospect.

The invention provides a natural insecticide and a preparation method thereof. The natural insecticide is mainly prepared from the following substances: beauveria bassiana, diatomite, chitinase, montmorillonite, fish scale collagen peptide, a dispersing agent, a humectant and water. Wherein the mass ratio of the beauveria bassiana to the chitinase is (2-3): 1, and the mass ratio of the montmorillonite additive to the fish scale collagen peptide is 1: (1-2). Beauveria bassiana is used as a main insecticidal substance, chitinase is combined, so that the insecticidal efficiency of the Beauveria bassiana is further improved, and the montmorillonite additive and fish scale collagen peptide enable the Beauveria bassiana to resist ultraviolet rays, so that the Beauveria bassiana is not easy to inactivate when irradiated by the ultraviolet rays, and the insecticidal effect is good. By using the beauveria bassiana to prevent the hippophae rhamnoides moth from infringing the hippophae rhamnoides, the hippophae rhamnoides moth can be prevented and treated when the hippophae rhamnoides moth does not moth tree roots, the pressure of prevention and treatment is greatly relieved, and pesticide pollution to soil and pesticide residues on tree bodies are reduced.

The pest trapping and killing device comprises a bottom plate, walking wheels are symmetrically connected to the bottom of the bottom plate, connecting pieces are symmetrically arranged on the bottom plate, a cylinder is rotationally connected to the top of the bottom plate through a bearing seat, rotating handles are symmetrically connected to the outer side of the cylinder, first screw rods are symmetrically arranged in the cylinder, and the first screw rods and the second screw rods are symmetrically arranged in the cylinder. The end portions of the two first screws are symmetrically sleeved with gears respectively, one ends of the two first screws are rotationally connected to the top of the bottom plate through bearing seats, pests are trapped by arranging a trapping lamp, then the pests fly into the box body from the isolation net cover after being trapped by the trapping lamp, and after the pests make contact with a trapping electric net plate, the trapping electric net plate is driven by a motor to rotate. Furthermore, the trapping electric net plate can release current to conduct electric shock catching and killing on the pests, people do not need to spray pesticide to the dendrobium in a reciprocating mode, time and labor are saved, and meanwhile the pest killing efficiency of the dendrobium is improved.

The invention discloses an apocarya tree permeation auxiliary agent and application, and belongs to the technical field of tree permeation auxiliary agents. The apocarya tree permeation auxiliary agent comprises fatty acid methyl ester ethoxylate, polyether modified trisiloxane and sodium dodecyl benzene sulfonate, and the mass ratio of the fatty acid methyl ester ethoxylate to the polyether modified trisiloxane to the sodium dodecyl benzene sulfonate is (1-2): (1-2): (1-2). The permeation auxiliary agent for the carya illinoensis trees has the beneficial effects that the permeation auxiliary agent can carry a medicament to quickly enter a trunk, trunk borers are effectively killed, and the plant surface wetting and spreading performance of the auxiliary agent can be remarkably enhanced; the auxiliary agent has the advantages of strong penetration performance on carya illinoensis trees, high fatality rate of trunk borers, low cost, simple and convenient dosage, small dosage, fast pesticide effect, small environmental influence and high safety.

The invention discloses a pesticide spraying device for plum trees, and relates to the technical field of fruit tree planting, the pesticide spraying device comprises a bottom plate, a rotating seat, a fixing plate and a mounting rack, a stirring mechanism is mounted on the inner side of a pesticide box, and a water pump is fixedly connected to the inner side of the pesticide box; a vertical rod is fixedly connected to the upper side of the rotating seat, a lifting groove is formed in the inner side of the vertical rod, sliding grooves are formed in the two sides of the lifting groove, the inner side of the lifting groove is slidably connected to a lifting block, a sliding block is fixedly connected to the exterior of the lifting block, a pesticide spraying mechanism is installed outside the sliding block, and a lifting mechanism is installed at the top of the vertical rod; a vertical plate is fixedly connected to the upper side of the bottom plate, a tension spring is fixedly connected between the fixed plate and the vertical plate, and a convex plate is fixedly connected to the exterior of the tension spring; a deflection mechanism is mounted outside the mounting frame; according to the device, through technical innovation, on-site rapid preparation of pesticides is achieved, the pesticides are flexibly selected according to different insect pest types, the pesticide spraying height is automatically adjusted, and the pesticide spraying range is expanded, so that the pesticide spraying efficiency and the insect killing effect are remarkably improved.